package chapter03.example07;
class Student {
    private String name;
    private int age;
    public Student (){ }
    public Student(String n){
        name = n;
    }
    public Student (String n,int a) {
        name = n;
        age = a;
    }
    public void read () {
        System.out.println("我是:" + name + "，年龄:" + age);
    }
}
public class example07 {
    public static void main(String[] args) {
        Student stu1 = new Student("张三");
        Student stu2 = new Student("张三",18);
        stu1.read();
        stu2.read();
    }
}
